186612: COVER,JUNCTION BOX.
The COVER,JUNCTION BOX is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN, thread_class: 2A A, thread_length: 1.000 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN, surface_finish: 63.0 MICROINCHES THREADS. This part is cataloged in the U.S.
Government catalog under NSN 5305-00-018-6612, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.
Verify compatibility with your specific system configuration before ordering.
| material | STEEL OVERALL |
| head_style | HEXAGON |
| head_height | 0.226 INCHES MINIMUM AND 0.243 INCHES MAXIMUM IN |
| thread_class | 2A A |
| thread_length | 1.000 INCHES MINIMUM AND 1.188 INCHES MAXIMUM IN |
| surface_finish | 63.0 MICROINCHES THREADS |
| fastener_length | 1.313 INCHES MINIMUM AND 1.375 INCHES MAXIMUM IN |
| hardness_rating | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| thread_direction | RIGHT-HAND |
| surface_treatment | ZINC AND CHROMATE OVERALL |
| width_between_flats | 0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN |
| center_hole_diameter | 2.969 INCHES MINIMUM AND 2.999 INCHES MAXIMUM IN |
| NSN | 5305-00-018-6612 |
| HEAD HEIGHT | 0.234 INCHES NOMINAL IN |
| FASTENER LENGTH | 1.375 INCHES NOMINAL IN |
| THREAD LENGTH | 1.000 INCHES MAXIMUM IN |
| HARDNESS RATING | 32.0 ROCKWELL C MINIMUM AND 38.0 ROCKWELL C MAXIMUM OVERALL |
| NOMINAL THREAD DIAMETER | 0.375 INCHES IN |
| HEAD STYLE | HEXAGON |
| THREAD DIRECTION | RIGHT-HAND |
| DEPARTURE FROM CITED DESIGNATOR | AS MODIFIED BY LENGTH |
| WIDTH BETWEEN FLATS | 0.562 INCHES NOMINAL IN |
| NONDEFINITIVE SPEC/STD DATA | 2 TYPE AND 10P STYLE AND 8 GRADE |